given it’s central nature, it would be great if coal stack count could be higher, thus occupying less inventory space. i think 50 would be appropriate. 100 feels TOO much…
Instead of bigger coal stack, a special fuel inventory slot in the drillship that stack to say 500 would be more “Realistic”
I think fuel is already in a good spot but if you want some extra space, how about energy modules granting an extra space or two specifically for fuel (based on tier)?